Submission #5018439


Source Code Expand

#include<bits/stdc++.h>
#define fi first
#define se second
#define mp make_pair
#define pb push_back
#define fin(x) freopen(x,"r",stdin)
#define fout(x) freopen(x,"w",stdout)
#define mem(a,b) memset(a,b,sizeof(a))
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
const ll INF=0x3f3f3f3f3f3f3f3f;
const ll inf=0xc0c0c0c0c0c0c0c0;
const double pi=acos(-1);
ll N,A;
const int EPS=50;
ll qpow(ll b,ll p)
{
	ll res=1;
	while(p)
	{
		if(p&1)res*=b;
		b*=b;
		p>>=1;
	}
	return res;
}
ll s2(ll x,ll K)
{
	return A*K+x*K+(N-1)/qpow(x,K)+1;	
}
ll solve(int K)
{
	ll low=1,high=N;
	if(K!=1)
	{
		high=ceil(pow(N,1.0/K))+1;
//		high=0;
//		while(qpow(high,K)<N)high++;
	}
	while(low+EPS<high)
	{
//		cout<<low<<"EF"<<high<<endl;
		ll l,r;
		l=(low*2+high)/3;
		r=(low+high*2)/3;
		ll res1,res2;
		res1=s2(l,K);
		res2=s2(r,K);
		if(res1>res2)low=l;
		else high=r;		
	}
	ll m=INF;
//	puts("EEEEEEE");
	for(int x=low;x<=high;x++)
	{
		m=min(m,s2(x,K));
//		cout<<x<<"E"<<K<<"U"<<m<<endl;
	}
		
	return m;
}
ll divi(ll low,ll high)
{
	while(low+EPS<high)
	{
//		cout<<low<<"E"<<high<<endl;
		ll l,r;
		l=(low*2+high)/3;
		r=(low+high*2)/3;
		ll res1=solve(l);
//		puts("DDDDD");
		ll res2=solve(r);
		if(res1>res2)low=l;
		else high=r;	
//		cout<<"PPPP\n";	
	}
	ll m=INF;
	for(ll x=low;x<=high;x++)
		m=min(m,solve(x));
	return m;
}
int main()
{
	scanf("%lld%lld",&N,&A);
	printf("%lld\n",min(divi(1,60),N));
	return 0;
}

Submission Info

Submission Time
Task E - Cookies
User vjudge4
Language C++14 (GCC 5.4.1)
Score 0
Code Size 1428 Byte
Status RE
Exec Time 103 ms
Memory 256 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:85:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld%lld",&N,&A);
                         ^

Judge Result

Set Name sample dataset1 dataset2
Score / Max Score 0 / 0 0 / 500 0 / 500
Status
AC × 2
RE × 1
AC × 26
WA × 1
AC × 31
WA × 1
RE × 40
Set Name Test Cases
sample sample-01.txt, sample-02.txt, sample-03.txt
dataset1 sample-01.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt, 01-11.txt, 01-12.txt, 01-13.txt, 01-14.txt, 01-15.txt, 01-16.txt, 01-17.txt, 01-18.txt, 01-19.txt, 01-20.txt, 01-21.txt, 01-22.txt, 01-23.txt, 01-24.txt, 01-25.txt, 01-26.txt
dataset2 sample-01.txt, sample-02.txt, sample-03.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt, 01-11.txt, 01-12.txt, 01-13.txt, 01-14.txt, 01-15.txt, 01-16.txt, 01-17.txt, 01-18.txt, 01-19.txt, 01-20.txt, 01-21.txt, 01-22.txt, 01-23.txt, 01-24.txt, 01-25.txt, 01-26.txt, 02-01.txt, 02-02.txt, 02-03.txt, 02-04.txt, 02-05.txt, 02-06.txt, 02-07.txt, 02-08.txt, 02-09.txt, 02-10.txt, 02-11.txt, 02-12.txt, 02-13.txt, 02-14.txt, 02-15.txt, 02-16.txt, 02-17.txt, 02-18.txt, 02-19.txt, 02-20.txt, 02-21.txt, 02-22.txt, 02-23.txt, 02-24.txt, 02-25.txt, 02-26.txt, 02-27.txt, 02-28.txt, 02-29.txt, 02-30.txt, 02-31.txt, 02-32.txt, 02-33.txt, 02-34.txt, 02-35.txt, 02-36.txt, 02-37.txt, 02-38.txt, 02-39.txt, 02-40.txt, sample-01.txt, sample-02.txt, sample-03.txt
Case Name Status Exec Time Memory
01-01.txt AC 1 ms 256 KB
01-02.txt AC 1 ms 256 KB
01-03.txt AC 1 ms 256 KB
01-04.txt WA 1 ms 256 KB
01-05.txt AC 1 ms 256 KB
01-06.txt AC 1 ms 256 KB
01-07.txt AC 1 ms 256 KB
01-08.txt AC 1 ms 256 KB
01-09.txt AC 1 ms 256 KB
01-10.txt AC 1 ms 256 KB
01-11.txt AC 1 ms 256 KB
01-12.txt AC 1 ms 256 KB
01-13.txt AC 1 ms 256 KB
01-14.txt AC 1 ms 256 KB
01-15.txt AC 1 ms 256 KB
01-16.txt AC 1 ms 256 KB
01-17.txt AC 1 ms 256 KB
01-18.txt AC 1 ms 256 KB
01-19.txt AC 1 ms 256 KB
01-20.txt AC 1 ms 256 KB
01-21.txt AC 1 ms 256 KB
01-22.txt AC 1 ms 256 KB
01-23.txt AC 1 ms 256 KB
01-24.txt AC 1 ms 256 KB
01-25.txt AC 1 ms 256 KB
01-26.txt AC 1 ms 256 KB
02-01.txt AC 1 ms 256 KB
02-02.txt RE 101 ms 256 KB
02-03.txt RE 101 ms 256 KB
02-04.txt RE 101 ms 256 KB
02-05.txt RE 102 ms 256 KB
02-06.txt RE 102 ms 256 KB
02-07.txt RE 102 ms 256 KB
02-08.txt RE 100 ms 256 KB
02-09.txt RE 101 ms 256 KB
02-10.txt RE 103 ms 256 KB
02-11.txt RE 101 ms 256 KB
02-12.txt RE 102 ms 256 KB
02-13.txt RE 101 ms 256 KB
02-14.txt RE 101 ms 256 KB
02-15.txt RE 101 ms 256 KB
02-16.txt RE 102 ms 256 KB
02-17.txt RE 101 ms 256 KB
02-18.txt RE 101 ms 256 KB
02-19.txt RE 102 ms 256 KB
02-20.txt RE 101 ms 256 KB
02-21.txt RE 101 ms 256 KB
02-22.txt RE 100 ms 256 KB
02-23.txt RE 101 ms 256 KB
02-24.txt RE 101 ms 256 KB
02-25.txt AC 1 ms 256 KB
02-26.txt RE 102 ms 256 KB
02-27.txt RE 101 ms 256 KB
02-28.txt RE 102 ms 256 KB
02-29.txt RE 102 ms 256 KB
02-30.txt RE 103 ms 256 KB
02-31.txt RE 103 ms 256 KB
02-32.txt RE 102 ms 256 KB
02-33.txt RE 103 ms 256 KB
02-34.txt RE 100 ms 256 KB
02-35.txt RE 102 ms 256 KB
02-36.txt RE 101 ms 256 KB
02-37.txt RE 102 ms 256 KB
02-38.txt RE 102 ms 256 KB
02-39.txt RE 102 ms 256 KB
02-40.txt RE 102 ms 256 KB
sample-01.txt AC 1 ms 256 KB
sample-02.txt RE 102 ms 256 KB
sample-03.txt AC 1 ms 256 KB